Tube and hinge for transfer binders



G. w. NEWMAN TUBE AND HINGE FOR TRANSFER BINDERS Filed April 14. 1924 George wnwizzan Sept. 23, 1924.

Patented Sept.23, 1924.

UNITED STATES PA ENT QFFKCE.

GEORGE WASHINGTO NEWMAN, or CIIICAGO,'ILLINOIS, ASSIGNOR To WILSON- JONES LOOSE LEAF, COMPANY, A CORPORATION OF MASSACHUSETTS.

. TUBE AND HINGE OR TRANSFER BINDER-S.

Application filed Aprii 14., 1924.. Serial NO. 706,398;

To all whom it may concern."

Be it known that I, GEORGEVV. NEWMAN,

a citizen of the Unitedv States, anda resident of the city of Chicago, in the county of Cook and State of Illinois, have 1nvented certain new and useful Improvements in a Tube and Hinge for Transfer Binders; and I do hereby declare that the following is a full, clear, and exact descr1ption of the same, reference being had to the accompanying drawings and to the numerals of reference marked thereon, which form a part of this specification.

This invention relates to a loose leaf binder of that type, involving a pair of separable covers having clamping members hinged thereto with suitable leaf impahng posts.

Thesev clamping members are usually 20 stamped or formed from metal into oblong or tubular form with suitable hinge eyelets or bearings. It is, therefore, necessary to stamp or cut an irregular piece of metal from the original sheet thereby causing con- 2 siderable waste. It is also desirable that these hinge bearings be nickel plated. Where the hinge bearings are. ntegrally formed with the clamping members, they could not very well be separately nickel plated. Consequently, the whole clamping member had to be nickel plated. This method resulted in a great deal of waste; besides it proved costly.

This I invention is designed to overcome the aforementioned defects in the provision of a structure wherein the clamping members and hinge bearings are separately formed, thereby avoiding the costly waste, and in which the hinge bearings may be nickel plated before they are attached to the clamping members, and in which the clamping members are formed from a rectangular sheet of metal into a tubular or elliptical form, bringing the ends together and sp0t-welding or securing the hinge eyelets Over the meeting edges.

The invention comprises the novel structure and combinations hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the different views: I Figure 1 is a top plan view of a binder involving this invention.

Figure2 is an enlarged top plan view of one of the clamping members.

Flgure 3 is an enlarged sectional view upon the line 3-3 of Figure 2.

F lgure 4 is a perspective view of one of the eyelet members.

The illustrated binder to which my invention is applied consists of a pair of covers 1 having clamping members 2 hinged to the lower ends thereof; one of these clamping membershas a pair of impaling posts that are adapted to be adjustably locked in apertures in the other clamping member. According to this invention, each clampng member is formed from a substantiallv rectangular sheet of metal which is bent inth flat tubular form, the ends of the metal sheet being brought together upon what may be. termed the inner edge of the clamplng member as indicated at 8.

The hinge bearings 4 are separately formed from a rectangular piece of metal which is bent to provide a cylindrical bearing or loop 4* with oppositely extending attaching flanges l These hinge bearings are separately nickel plated as shown in Figure 3 and spot welded at suitable points over the juncture of the ends of each clamping member exteriorly thereof as shown in Figures 2 and 3; the flanges 4* being directed upon opposite sides of the joint and welded to the clamping member, thus holding the ends together against separation. If desirable, the joint may be spot-welded directly under each hinge eyelet.

It, will, of course, be understood that these hinge bearings or eyelets serve to hinge the covers to the clamping members by means ofa wire rod as is well known in the art.

I am aware that numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted, otherwise than necessitated by the prior art.

I claim as my invention:

1. Ina loose leaf binder, a hollow clamping member formed from a rectangular sheet of metal having its longitudinal edges brought into juxtaposition and hinge bearings having oppositely extending attaching flanges Welded exteriorly of said member metal member having longitudinally extending meeting edges and hinge eyelets united with said member over said meeting edges for the purpose set forth. s

3. A clamping member for a loose leaf binder comprising a substantially elliptical hollow metal member having longitudinally extending meeting edges, and hinge eyelets having means eX-teriorly spanning said meeting edges and \veldedto said member.

4:. A clamping member for loose "leaf binders comprising .a hollow elliptical metal member formed from a rectangular slieet of metal having meeting edges and hinge eyelets Welded over said juncture of said meeting edges.

'5. A clamping member for a loose leaf binder comprising a hollow tubular element 'formed from a rectangular sheet of metal having its longitudinal edges in uXtaprosr tion, and members attached exteriorly of said tubular element and extending over said edges for'retaining the sametogether, said members forming a connection for a binder cover.

In testimony whereof I have hereunto 

